Classic Gin Fizz
A gin fizz is a classic cocktail that was invented in the 1870s. It's made with gin, lemon juice, maple syrup, and carbonated water.
Dry shake the drink ingredients. This lets the protein in the egg begin to form foam instead of being diluted by the ice.
Then add ice and shake again. This cools the drink and strengthens the foam. Strain it into the glass, and you'll get a thick, white frothy layer.
Serve and garnish with mint if desired.